Frustration

Greetings to all!

I'm writing here, because i basically run out of options. I've been trying to leave my body for over a year now. I've developed my meditation skills, and lucid dreaming, but i still can't reach the astral consciously. I've read tons of books and dozens of articles. There is no problem for me to relax. I can stop feeling my body after 10-15min. The calmness of the mind is also an easy thing now. The main problem is that state when you have to be aware, yet unaware. Fall asleep, yet stay conscious. Some people say it's a matter of focus, and some that "you just have to let go". So I'm asking all of you about your personal experience. How to cross that barier? I will be thankfull fo every answer.